The ability to create a form (for intake or check-in purposes) where the user can enter their unique contact ID (the native ID ghl creates) into the form in order to trigger automations or updates to their contact data.

This would be huge for users who would like to use a form for something like checkins or updates for a specific contact when there may be "duplicate" phones/emails in the system. eg. a fitness gym might have a family of four people, each with the same phone/email, but they all have their own contact ID. each member could enter their contact ID to check-in.

This would especially benefit any business with a sign-in sheet or check-in procedure such as health clubs, martial arts academies, medical clinics, chiros, etc.